| 26 may 2018 | Espinosa Aranda, Angel 2465 | 1-0 | Martinez Fernandez, Raul 2176 | D11 Slav Defense: Modern Line | 1 · mesa 1 |
| 26 may 2018 | Pastor Alonso De Prado, Alberto 2148 | 0-1 | Pulvett Marin, Daniel Eduardo 2455 | B22 Sicilian Defense: Alapin Variation, Barmen Defense | 1 · mesa 2 |
| 26 may 2018 | Moreno Ruiz, Javier 2447 | 1-0 | Mkrtchyan, Levon 2141 | A59 Benko Gambit Accepted: Yugoslav | 1 · mesa 3 |
| 26 may 2018 | Torres Boch, Jose F. 2137 | 0-1 | Martin Duque, Jesus 2377 | C15 French Defense: Winawer Variation, Delayed Exchange Variation | 1 · mesa 4 |
| 26 may 2018 | Roa Alonso, Santiago 2355 | 1-0 | Aguilera Lopez, Alejandro 2098 | B40 Sicilian Defense: French Variation, Normal | 1 · mesa 5 |
| 26 may 2018 | Sanchez Garcia, Aurelio 2060 | ½-½ | Candela Perez, Jose 2353 | A05 Zukertort Opening: Nimzo-Larsen Variation | 1 · mesa 6 |
| 26 may 2018 | Perez Gonzalez, Jose Manuel 2252 | 1-0 | Rodrigo Yanguas, Maria 2054 | B23 Sicilian Defense: Closed | 1 · mesa 7 |
| 26 may 2018 | Pindado Campos, Raul 2018 | 0-1 | Fernandez Lledo, Javier 2241 | D24 Queen's Gambit Accepted | 1 · mesa 8 |
| 26 may 2018 | De La Fuente Gonzalez, Francisco 2213 | ½-½ | Cabanas Bravo, Juan Andres 1936 | A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | 1 · mesa 9 |
| 26 may 2018 | Santamaria Baeza, Adolfo 1901 | 0-1 | Iagar, Razvan-Gabriel 2213 | C02 French Defense: Advance Variation, Main Line | 1 · mesa 10 |
| 26 may 2018 | Nunez Munoz, Jesus 2193 | ½-½ | Rosa Ramirez, Victor D. 1884 | C10 French Defense: Rubinstein Variation, Fort Knox Variation | 1 · mesa 11 |
| 26 may 2018 | Fernandez Aransay, Fernando 1871 | 0-1 | Lin, Yingrui 2188 | C42 Petrov's Defense: French Attack | 1 · mesa 12 |
| 27 may 2018 | Fernandez Lledo, Javier 2241 | 0-1 | Espinosa Aranda, Angel 2465 | B30 Sicilian Defense: Old Sicilian | 2 · mesa 1 |
| 27 may 2018 | Pulvett Marin, Daniel Eduardo 2455 | 1-0 | Roa Alonso, Santiago 2355 | D02 Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | 2 · mesa 2 |
| 27 may 2018 | Iagar, Razvan-Gabriel 2213 | 0-1 | Moreno Ruiz, Javier 2447 | E10 Indian Defense: Anti-Nimzo-Indian | 2 · mesa 3 |
| 27 may 2018 | Martin Duque, Jesus 2377 | 1-0 | Perez Gonzalez, Jose Manuel 2252 | B45 Sicilian Defense: Four Knights Variation | 2 · mesa 4 |
| 27 may 2018 | Lin, Yingrui 2188 | ½-½ | De La Fuente Gonzalez, Francisco 2213 | A36 English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 | 2 · mesa 5 |
| 27 may 2018 | Candela Perez, Jose 2353 | ½-½ | Nunez Munoz, Jesus 2193 | E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation | 2 · mesa 6 |
| 27 may 2018 | Cabanas Bravo, Juan Andres 1936 | ½-½ | Sanchez Garcia, Aurelio 2060 | B09 Pirc Defense: Austrian Attack, Unzicker Attack | 2 · mesa 7 |
| 27 may 2018 | Rosa Ramirez, Victor D. 1884 | 0-1 | Pastor Alonso De Prado, Alberto 2148 | B00 Pirc Defense | 2 · mesa 8 |
| 27 may 2018 | Martinez Fernandez, Raul 2176 | 1-0 | Barragan Arriaza, Pablo 2030 | B07 Pirc Defense | 2 · mesa 9 |
| 27 may 2018 | Mkrtchyan, Levon 2141 | 1-0 | Lopez de Turiso, Jose Angel 2022 | C44 Scotch Game: Scotch Gambit, Advance Variation | 2 · mesa 10 |
| 27 may 2018 | Perez Diez, Victor 1964 | 1-0 | Torres Boch, Jose F. 2137 | B23 Sicilian Defense: Closed, Korchnoi Defense | 2 · mesa 11 |
| 27 may 2018 | Aguilera Lopez, Alejandro 2098 | 1-0 | Pindado Campos, Raul 2018 | D12 Slav Defense: Quiet Variation, Schallopp Defense | 2 · mesa 12 |
| 27 may 2018 | Rodrigo Yanguas, Maria 2054 | 0-1 | Santamaria Baeza, Adolfo 1901 | C64 Ruy Lopez: Classical Variation, Central Variation | 2 · mesa 13 |
| 28 may 2018 | Espinosa Aranda, Angel 2465 | 1-0 | Martin Duque, Jesus 2377 | A07 King's Indian Attack: Keres Variation | 3 · mesa 1 |
| 28 may 2018 | Moreno Ruiz, Javier 2447 | ½-½ | Pulvett Marin, Daniel Eduardo 2455 | A48 London System | 3 · mesa 2 |
| 28 may 2018 | Roa Alonso, Santiago 2355 | 1-0 | Lin, Yingrui 2188 | B10 Caro-Kann Defense: Accelerated Panov Attack | 3 · mesa 3 |
| 28 may 2018 | Pastor Alonso De Prado, Alberto 2148 | 0-1 | Candela Perez, Jose 2353 | C02 French Defense: Advance Variation, Paulsen Attack | 3 · mesa 4 |
| 28 may 2018 | Perez Gonzalez, Jose Manuel 2252 | 1-0 | Mkrtchyan, Levon 2141 | A58 Benko Gambit Accepted: Fully Accepted Variation | 3 · mesa 5 |
| 28 may 2018 | Sanchez Garcia, Aurelio 2060 | 0-1 | Fernandez Lledo, Javier 2241 | A13 English Opening: Agincourt Defense, Wimpy System | 3 · mesa 6 |
| 28 may 2018 | De La Fuente Gonzalez, Francisco 2213 | ½-½ | Perez Diez, Victor 1964 | A04 Zukertort Opening: Dutch Variation | 3 · mesa 7 |
| 28 may 2018 | Cabanas Bravo, Juan Andres 1936 | ½-½ | Iagar, Razvan-Gabriel 2213 | C13 French Defense: Alekhine-Chatard Attack, Spielmann Variation | 3 · mesa 8 |
| 28 may 2018 | Nunez Munoz, Jesus 2193 | 1-0 | Fernandez Aransay, Fernando 1871 | B70 Sicilian Defense: Dragon Variation, Fianchetto Variation | 3 · mesa 9 |
| 28 may 2018 | Santamaria Baeza, Adolfo 1901 | 0-1 | Martinez Fernandez, Raul 2176 | C54 Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | 3 · mesa 10 |
| 28 may 2018 | Lopez de Turiso, Jose Angel 2022 | 1-0 | Torres Boch, Jose F. 2137 | | 3 · mesa 11 |
| 28 may 2018 | Barragan Arriaza, Pablo 2030 | 1-0 | Rosa Ramirez, Victor D. 1884 | | 3 · mesa 12 |
| 29 may 2018 | Pulvett Marin, Daniel Eduardo 2455 | ½-½ | Espinosa Aranda, Angel 2465 | E15 Queen's Indian Defense: Fianchetto Variation | 4 · mesa 1 |
| 29 may 2018 | Martin Duque, Jesus 2377 | ½-½ | Moreno Ruiz, Javier 2447 | C77 Ruy Lopez: Morphy Defense, Anderssen Variation | 4 · mesa 2 |
| 29 may 2018 | Martinez Fernandez, Raul 2176 | ½-½ | Roa Alonso, Santiago 2355 | C54 Italian Game: Classical Variation, Giuoco Pianissimo | 4 · mesa 3 |
| 29 may 2018 | Candela Perez, Jose 2353 | ½-½ | Perez Gonzalez, Jose Manuel 2252 | B40 Sicilian Defense: French Variation, Westerinen Attack | 4 · mesa 4 |
| 29 may 2018 | Lin, Yingrui 2188 | ½-½ | Nunez Munoz, Jesus 2193 | A36 English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 | 4 · mesa 5 |
| 29 may 2018 | Iagar, Razvan-Gabriel 2213 | ½-½ | De La Fuente Gonzalez, Francisco 2213 | D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation | 4 · mesa 6 |
| 29 may 2018 | Perez Diez, Victor 1964 | 0-1 | Cabanas Bravo, Juan Andres 1936 | C25 Vienna Game: Stanley Variation, Meitner-Mieses Gambit | 4 · mesa 7 |
| 29 may 2018 | Lopez de Turiso, Jose Angel 2022 | 0-1 | Pastor Alonso De Prado, Alberto 2148 | D31 Queen's Gambit Declined: Charousek Variation | 4 · mesa 8 |
| 29 may 2018 | Mkrtchyan, Levon 2141 | 1-0 | Pindado Campos, Raul 2018 | B90 Sicilian Defense: Najdorf Variation, Lipnitsky Attack | 4 · mesa 9 |
| 29 may 2018 | Fernandez Aransay, Fernando 1871 | 0-1 | Sanchez Garcia, Aurelio 2060 | B06 Modern Defense: Standard Defense | 4 · mesa 10 |
| 29 may 2018 | Barragan Arriaza, Pablo 2030 | 1-0 | Santamaria Baeza, Adolfo 1901 | A15 English Opening: Anglo-Indian Defense | 4 · mesa 11 |
| 30 may 2018 | Espinosa Aranda, Angel 2465 | ½-½ | Moreno Ruiz, Javier 2447 | C01 French Defense: Exchange Variation | 5 · mesa 1 |
| 30 may 2018 | Perez Gonzalez, Jose Manuel 2252 | ½-½ | Pulvett Marin, Daniel Eduardo 2455 | B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | 5 · mesa 2 |